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Posted to commits@streams.apache.org by mf...@apache.org on 2016/10/12 19:00:10 UTC
[12/53] [abbrv] incubator-streams git commit: first take at
STREAMS-389: streams-project/streams-plugins/streams-plugin-scala
first take at STREAMS-389: streams-project/streams-plugins/streams-plugin-scala
Project: http://git-wip-us.apache.org/repos/asf/incubator-streams/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-streams/commit/61f2736a
Tree: http://git-wip-us.apache.org/repos/asf/incubator-streams/tree/61f2736a
Diff: http://git-wip-us.apache.org/repos/asf/incubator-streams/diff/61f2736a
Branch: refs/heads/invalid_headers
Commit: 61f2736a9424516606b9f7544b894cb81f65922c
Parents: 1bc84db
Author: Steve Blackmon (@steveblackmon) <sb...@apache.org>
Authored: Mon Dec 7 13:48:38 2015 -0700
Committer: Steve Blackmon @steveblackmon <sb...@apache.org>
Committed: Wed Jun 1 12:51:43 2016 -0500
----------------------------------------------------------------------
streams-plugins/pom.xml | 1 +
streams-plugins/streams-plugin-scala/pom.xml | 243 ++++++++++++
.../streams/plugins/StreamsPojoScala.java | 371 +++++++++++++++++++
.../streams/plugins/StreamsPojoScalaMojo.java | 71 ++++
.../plugins/test/StreamsPojoScalaTest.java | 55 +++
.../test/resources/streams-plugin-scala/pom.xml | 40 ++
6 files changed, 781 insertions(+)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/incubator-streams/blob/61f2736a/streams-plugins/pom.xml
----------------------------------------------------------------------
diff --git a/streams-plugins/pom.xml b/streams-plugins/pom.xml
index 5d403ac..f2c8999 100644
--- a/streams-plugins/pom.xml
+++ b/streams-plugins/pom.xml
@@ -42,6 +42,7 @@
<module>streams-plugin-hive</module>
<module>streams-plugin-pig</module>
<module>streams-plugin-pojo</module>
+ <module>streams-plugin-scala</module>
</modules>
<dependencyManagement>
http://git-wip-us.apache.org/repos/asf/incubator-streams/blob/61f2736a/streams-plugins/streams-plugin-scala/pom.xml
----------------------------------------------------------------------
diff --git a/streams-plugins/streams-plugin-scala/pom.xml b/streams-plugins/streams-plugin-scala/pom.xml
new file mode 100644
index 0000000..f718260
--- /dev/null
+++ b/streams-plugins/streams-plugin-scala/pom.xml
@@ -0,0 +1,243 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ ~ Licensed to the Apache Software Foundation (ASF) under one
+ ~ or more contributor license agreements. See the NOTICE file
+ ~ distributed with this work for additional information
+ ~ regarding copyright ownership. The ASF licenses this file
+ ~ to you under the Apache License, Version 2.0 (the
+ ~ "License"); you may not use this file except in compliance
+ ~
+ ~ http://www.apache.org/licenses/LICENSE-2.0
+ ~
+ ~ Unless required by applicable law or agreed to in writing,
+ ~ software distributed under the License is distributed on an
+ ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ ~ KIND, either express or implied. See the License for the
+ ~ specific language governing permissions and limitations
+ ~ under the License.
+ -->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+ <modelVersion>4.0.0</modelVersion>
+ <groupId>org.apache.streams.plugins</groupId>
+ <artifactId>streams-plugin-scala</artifactId>
+ <version>0.3-incubating-SNAPSHOT</version>
+ <packaging>maven-plugin</packaging>
+
+ <parent>
+ <groupId>org.apache.streams</groupId>
+ <artifactId>streams-plugins</artifactId>
+ <version>0.3-incubating-SNAPSHOT</version>
+ </parent>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.streams</groupId>
+ <artifactId>streams-config</artifactId>
+ <version>${project.version}</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.streams</groupId>
+ <artifactId>streams-core</artifactId>
+ <version>${project.version}</version>
+ </dependency>
+ <dependency>
+ <groupId>org.jsonschema2pojo</groupId>
+ <artifactId>jsonschema2pojo-core</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.streams</groupId>
+ <artifactId>streams-pojo</artifactId>
+ <version>${project.version}</version>
+ <scope>test</scope>
+ <type>test-jar</type>
+ </dependency>
+ <dependency>
+ <groupId>org.reflections</groupId>
+ <artifactId>reflections</artifactId>
+ <version>0.9.9</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-aether-provider</artifactId>
+ <version>3.3.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-artifact</artifactId>
+ <version>3.3.3</version>
+ <scope>provided</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-compat</artifactId>
+ <version>3.3.3</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-core</artifactId>
+ <version>3.3.3</version>
+ <exclusions>
+ <exclusion>
+ <groupId>org.sonatype.aether</groupId>
+ <artifactId>*</artifactId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>maven-plugin-api</artifactId>
+ <version>3.3.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-resources-plugin</artifactId>
+ <version>2.7</version>
+ <exclusions>
+ <exclusion>
+ <groupId>org.apache.maven</groupId>
+ <artifactId>*</artifactId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.codehaus.plexus</groupId>
+ <artifactId>plexus-utils</artifactId>
+ <version>3.0.15</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-plugin-plugin</artifactId>
+ <version>3.4</version>
+ <exclusions>
+ <exclusion>
+ <artifactId>commons-logging</artifactId>
+ <groupId>commons-logging</groupId>
+ </exclusion>
+ </exclusions>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven.plugin-tools</groupId>
+ <artifactId>maven-plugin-tools-api</artifactId>
+ <version>3.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven.plugin-tools</groupId>
+ <artifactId>maven-plugin-annotations</artifactId>
+ <version>3.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven.plugin-tools</groupId>
+ <artifactId>maven-plugin-tools-generators</artifactId>
+ <version>3.3</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.maven.plugin-testing</groupId>
+ <artifactId>maven-plugin-testing-harness</artifactId>
+ <version>3.3.0</version>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <scope>test</scope>
+ </dependency>
+ <dependency>
+ <groupId>commons-lang</groupId>
+ <artifactId>commons-lang</artifactId>
+ <version>2.6</version>
+ </dependency>
+ <dependency>
+ <groupId>joda-time</groupId>
+ <artifactId>joda-time</artifactId>
+ </dependency>
+ <dependency>
+ <groupId>org.joda</groupId>
+ <artifactId>joda-convert</artifactId>
+ <version>1.8.1</version>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <sourceDirectory>src/main/java</sourceDirectory>
+ <testSourceDirectory>src/test/java</testSourceDirectory>
+ <resources>
+ <resource>
+ <directory>src/main/resources</directory>
+ </resource>
+ </resources>
+ <testResources>
+ <testResource>
+ <directory>src/test/resources</directory>
+ </testResource>
+ </testResources>
+ <plugins>
+ <plugin>
+ <artifactId>maven-plugin-plugin</artifactId>
+ <version>3.4</version>
+ <configuration>
+ <skipErrorNoDescriptorsFound>true</skipErrorNoDescriptorsFound>
+ </configuration>
+ <executions>
+ <execution>
+ <id>mojo-descriptor</id>
+ <phase>process-classes</phase>
+ <goals>
+ <goal>descriptor</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
+ <groupId>org.reflections</groupId>
+ <artifactId>reflections-maven</artifactId>
+ <executions>
+ <execution>
+ <goals>
+ <goal>reflections</goal>
+ </goals>
+ <phase>process-classes</phase>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-dependency-plugin</artifactId>
+ <version>2.4</version>
+ <executions>
+ <execution>
+ <id>streams-pojo-resource-dependencies</id>
+ <phase>process-test-resources</phase>
+ <goals>
+ <goal>unpack-dependencies</goal>
+ </goals>
+ <configuration>
+ <includeArtifactIds>streams-pojo</includeArtifactIds>
+ <includes>org/apache/streams/pojo/json/**</includes>
+ <outputDirectory>${project.build.directory}/test-classes</outputDirectory>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ <plugin>
+ <groupId>net.alchim31.maven</groupId>
+ <artifactId>scala-maven-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>scala-compile-generated-sources</id>
+ <phase>integration-test</phase>
+ <goals>
+ <goal>compile</goal>
+ </goals>
+ <configuration>
+ <sourceDir>target/generated-sources/scala</sourceDir>
+ <target>target/testClasses/scala</target>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+
+</project>
http://git-wip-us.apache.org/repos/asf/incubator-streams/blob/61f2736a/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScala.java
----------------------------------------------------------------------
diff --git a/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScala.java b/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScala.java
new file mode 100644
index 0000000..1c3e317
--- /dev/null
+++ b/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScala.java
@@ -0,0 +1,371 @@
+package org.apache.streams.plugins;
+
+import com.google.common.base.Strings;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Sets;
+import org.apache.streams.data.DocumentClassifier;
+import org.reflections.ReflectionUtils;
+import org.reflections.Reflections;
+import org.reflections.scanners.SubTypesScanner;
+import org.reflections.scanners.TypeAnnotationsScanner;
+import org.reflections.util.ClasspathHelper;
+import org.reflections.util.ConfigurationBuilder;
+import org.reflections.ReflectionUtils.*;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Generated;
+import java.io.File;
+import java.io.IOException;
+import java.io.Serializable;
+import java.lang.reflect.Field;
+import java.nio.file.Files;
+import java.nio.file.OpenOption;
+import java.nio.file.Paths;
+import java.nio.file.StandardOpenOption;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * Created by sblackmon on 11/18/15.
+ */
+public class StreamsPojoScala implements Runnable {
+
+ private final static Logger LOGGER = LoggerFactory.getLogger(StreamsPojoScala.class);
+
+ private final static String LS = System.getProperty("line.separator");
+
+ private StreamsPojoScalaMojo mojo;
+
+ String outDir = "./target/generated-sources/scala";
+ String packages = "org.apache.streams.pojo.json";
+
+ private final Reflections reflections = new Reflections(
+ new ConfigurationBuilder()
+ // TODO
+ .forPackages(packages)
+ .setScanners(
+ new SubTypesScanner(),
+ new TypeAnnotationsScanner()));
+
+ public void main(String[] args) {
+ StreamsPojoScala streamsPojoScala = new StreamsPojoScala();
+ Thread thread = new Thread(streamsPojoScala);
+ thread.start();
+ try {
+ thread.join();
+ } catch (InterruptedException e) {
+ LOGGER.error("InterruptedException", e);
+ } catch (Exception e) {
+ LOGGER.error("Exception", e);
+ }
+ return;
+ }
+
+ public StreamsPojoScala(StreamsPojoScalaMojo mojo) {
+ this.mojo = mojo;
+ if ( mojo != null &&
+ mojo.getTarget() != null &&
+ !Strings.isNullOrEmpty(mojo.getTarget().getAbsolutePath())
+ )
+ outDir = mojo.getTarget().getAbsolutePath();
+
+ if ( mojo != null &&
+ mojo.getPackages() != null &&
+ !Strings.isNullOrEmpty(mojo.getPackages())
+ )
+ packages = mojo.getPackages();
+ }
+
+ public StreamsPojoScala() {
+ }
+
+ public void run() {
+
+ List<Class<?>> serializableClasses = detectSerializableClasses();
+
+ LOGGER.info("Detected {} serialiables:", serializableClasses.size());
+ for( Class clazz : serializableClasses )
+ LOGGER.debug(clazz.toString());
+
+ List<Class<?>> pojoClasses = detectPojoClasses(serializableClasses);
+
+ LOGGER.info("Detected {} pojos:", pojoClasses.size());
+ for( Class clazz : pojoClasses )
+ LOGGER.debug(clazz.toString());
+
+ List<Class<?>> traits = detectTraits(pojoClasses);
+
+ LOGGER.info("Detected {} traits:", traits.size());
+ for( Class clazz : traits )
+ LOGGER.debug(clazz.toString());
+
+ List<Class<?>> cases = detectCases(pojoClasses);
+
+ LOGGER.info("Detected {} cases:", cases.size());
+ for( Class clazz : cases )
+ LOGGER.debug(clazz.toString());
+
+
+ for( Class clazz : traits ) {
+ String pojoPath = clazz.getPackage().getName().replace(".pojo.json", ".scala").replace(".","/")+"/traits/";
+ String pojoName = clazz.getSimpleName()+".scala";
+ String pojoScala = renderTrait(clazz);
+ writeFile(outDir+"/"+pojoPath+pojoName, pojoScala);
+ }
+
+ for( Class clazz : traits ) {
+ String pojoPath = clazz.getPackage().getName().replace(".pojo.json", ".scala").replace(".","/")+"/";
+ String pojoName = clazz.getSimpleName()+".scala";
+ String pojoScala = renderClass(clazz);
+ writeFile(outDir+"/"+pojoPath+pojoName, pojoScala);
+ }
+
+ for( Class clazz : cases ) {
+ String pojoPath = clazz.getPackage().getName().replace(".pojo.json", ".scala").replace(".","/")+"/";
+ String pojoName = clazz.getSimpleName()+".scala";
+ String pojoScala = renderCase(clazz);
+ writeFile(outDir+"/"+pojoPath+pojoName, pojoScala);
+ }
+
+ }
+
+ private void writeFile(String pojoFile, String pojoScala) {
+ try {
+ File path = new File(pojoFile);
+ File dir = path.getParentFile();
+ if( !dir.exists() )
+ dir.mkdirs();
+ Files.write(Paths.get(pojoFile), pojoScala.getBytes(), StandardOpenOption.CREATE_NEW);
+ } catch (Exception e) {
+ LOGGER.error("Write Exception: {}", e);
+ }
+ }
+
+ public List<Class<?>> detectSerializableClasses() {
+
+ Set<Class<? extends Serializable>> classes =
+ reflections.getSubTypesOf(java.io.Serializable.class);
+
+ List<Class<?>> result = Lists.newArrayList();
+
+ for( Class clazz : classes ) {
+ result.add(clazz);
+ }
+
+ return result;
+ }
+
+ public List<Class<?>> detectPojoClasses(List<Class<?>> classes) {
+
+ List<Class<?>> result = Lists.newArrayList();
+
+ for( Class clazz : classes ) {
+ try {
+ clazz.newInstance().toString();
+ } catch( Exception e) {}
+ // super-halfass way to know if this is a jsonschema2pojo
+ if( clazz.getAnnotations().length >= 1 )
+ result.add(clazz);
+ }
+
+ return result;
+ }
+
+ public List<Class<?>> detectTraits(List<Class<?>> classes) {
+
+ List<Class<?>> traits = Lists.newArrayList();
+
+ for( Class clazz : classes ) {
+ if (reflections.getSubTypesOf(clazz).size() > 0)
+ traits.add(clazz);
+ }
+
+ return traits;
+ }
+
+ public List<Class<?>> detectCases(List<Class<?>> classes) {
+
+ List<Class<?>> cases = Lists.newArrayList();
+
+ for( Class clazz : classes ) {
+ if (reflections.getSubTypesOf(clazz).size() == 0)
+ cases.add(clazz);
+ }
+
+ return cases;
+ }
+
+
+ public String renderTrait(Class<?> pojoClass) {
+ StringBuffer stringBuffer = new StringBuffer();
+ stringBuffer.append("package ");
+ stringBuffer.append(pojoClass.getPackage().getName().replace(".pojo.json", ".scala"));
+ stringBuffer.append(".traits");
+ stringBuffer.append(LS);
+ stringBuffer.append("trait "+pojoClass.getSimpleName());
+ stringBuffer.append(" extends Serializable");
+ stringBuffer.append(" {");
+
+ Set<Field> fields = ReflectionUtils.getAllFields(pojoClass);
+ appendFields(stringBuffer, fields, "def", ";");
+
+ stringBuffer.append("}");
+
+ return stringBuffer.toString();
+ }
+
+ public String renderClass(Class<?> pojoClass) {
+ StringBuffer stringBuffer = new StringBuffer();
+ stringBuffer.append("package ");
+ stringBuffer.append(pojoClass.getPackage().getName().replace(".pojo.json", ".scala"));
+ stringBuffer.append(LS);
+ stringBuffer.append("import org.apache.commons.lang.builder.{HashCodeBuilder, EqualsBuilder, ToStringBuilder}");
+ stringBuffer.append(LS);
+ stringBuffer.append("class "+pojoClass.getSimpleName());
+ stringBuffer.append(" (");
+
+ Set<Field> fields = ReflectionUtils.getAllFields(pojoClass);
+ appendFields(stringBuffer, fields, "var", ",");
+
+ stringBuffer.append(")");
+ stringBuffer.append(" extends "+pojoClass.getPackage().getName().replace(".pojo.json", ".scala")+".traits."+pojoClass.getSimpleName());
+ stringBuffer.append(" with Serializable ");
+ stringBuffer.append("{ ");
+ stringBuffer.append(LS);
+ stringBuffer.append("override def equals(obj: Any) = obj match { ");
+ stringBuffer.append(LS);
+ stringBuffer.append(" case other: ");
+ stringBuffer.append(pojoClass.getSimpleName());
+ stringBuffer.append(" => other.getClass == getClass && EqualsBuilder.reflectionEquals(this,obj)");
+ stringBuffer.append(LS);
+ stringBuffer.append(" case _ => false");
+ stringBuffer.append(LS);
+ stringBuffer.append("}");
+ stringBuffer.append(LS);
+ stringBuffer.append("override def hashCode = new HashCodeBuilder().hashCode");
+ stringBuffer.append(LS);
+ stringBuffer.append("}");
+
+ return stringBuffer.toString();
+ }
+
+ public String renderCase(Class<?> pojoClass) {
+ StringBuffer stringBuffer = new StringBuffer();
+ stringBuffer.append("package ");
+ stringBuffer.append(pojoClass.getPackage().getName().replace(".pojo.json", ".scala"));
+ stringBuffer.append(LS);
+ stringBuffer.append("case class "+pojoClass.getSimpleName());
+ stringBuffer.append("(");
+ Set<Field> fields = ReflectionUtils.getAllFields(pojoClass);
+ appendFields(stringBuffer, fields, "var", ",");
+ stringBuffer.append(")");
+ if( pojoClass.getSuperclass() != null && !pojoClass.getSuperclass().equals(java.lang.Object.class)) {
+ stringBuffer.append(" extends "+pojoClass.getSuperclass().getPackage().getName().replace(".pojo.json", ".scala")+".traits."+pojoClass.getSuperclass().getSimpleName());
+ }
+ stringBuffer.append(LS);
+
+ return stringBuffer.toString();
+ }
+
+ private void appendFields(StringBuffer stringBuffer, Set<Field> fields, String varDef, String fieldDelimiter) {
+ if( fields.size() > 0 ) {
+ stringBuffer.append(LS);
+ Map<String,Field> fieldsToAppend = uniqueFields(fields);
+ for( Iterator<Field> iter = fieldsToAppend.values().iterator(); iter.hasNext(); ) {
+ Field field = iter.next();
+ if( override( field ) )
+ stringBuffer.append("override ");
+ stringBuffer.append(varDef);
+ stringBuffer.append(" ");
+ stringBuffer.append(name(field));
+ stringBuffer.append(": ");
+ if( option(field) ) {
+ stringBuffer.append("scala.Option[");
+ stringBuffer.append(type(field));
+ stringBuffer.append("]");
+ } else {
+ stringBuffer.append(type(field));
+ }
+ if( !fieldDelimiter.equals(";") && value(field) != null) {
+ stringBuffer.append(" = ");
+ if( option(field) ) {
+ stringBuffer.append("scala.Some(");
+ stringBuffer.append(value(field));
+ stringBuffer.append(")");
+ } else {
+ stringBuffer.append(value(field));
+ }
+ }
+ if( iter.hasNext()) stringBuffer.append(fieldDelimiter);
+ stringBuffer.append(LS);
+ }
+ } else {
+ stringBuffer.append(LS);
+ }
+ }
+
+ private boolean option(Field field) {
+ if( field.getName().equals("verb")) {
+ return false;
+ } else if( field.getType().equals(java.util.Map.class)) {
+ return false;
+ } else if( field.getType().equals(java.util.List.class)) {
+ return false;
+ } else return true;
+ }
+
+ private String value(Field field) {
+ if( field.getName().equals("verb")) {
+ return "\"post\"";
+ } else if( field.getName().equals("objectType")) {
+ return "\"application\"";
+ } else return null;
+ }
+
+ private String type(Field field) {
+ if( field.getType().equals(java.lang.String.class)) {
+ return "String";
+ } else if( field.getType().equals(java.util.Map.class)) {
+ return "scala.collection.mutable.Map[String,Any]";
+ } else if( field.getType().equals(java.util.List.class)) {
+ return "scala.collection.mutable.MutableList[Any]";
+ }
+ return field.getType().getCanonicalName().replace(".pojo.json", ".scala");
+ }
+
+ private Map<String,Field> uniqueFields(Set<Field> fieldset) {
+ Map<String,Field> fields = Maps.newTreeMap();
+ Field item = null;
+ for( Iterator<Field> it = fieldset.iterator(); it.hasNext(); item = it.next() ) {
+ if( item != null && item.getName() != null ) {
+ Field added = fields.put(item.getName(), item);
+ }
+ // ensure right class will get used
+ }
+ return fields;
+ }
+
+ private String name(Field field) {
+ if( field.getName().equals("object"))
+ return "obj";
+ else return field.getName();
+ }
+
+ private boolean override(Field field) {
+ try {
+ if( field.getDeclaringClass().getSuperclass().getField(field.getName()) != null )
+ return true;
+ else return false;
+ } catch( Exception e ) {
+ return false;
+ }
+ }
+}
http://git-wip-us.apache.org/repos/asf/incubator-streams/blob/61f2736a/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScalaMojo.java
----------------------------------------------------------------------
diff --git a/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScalaMojo.java b/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScalaMojo.java
new file mode 100644
index 0000000..baa0f50
--- /dev/null
+++ b/streams-plugins/streams-plugin-scala/src/main/java/org/apache/streams/plugins/StreamsPojoScalaMojo.java
@@ -0,0 +1,71 @@
+package org.apache.streams.plugins;
+
+import org.apache.maven.artifact.repository.ArtifactRepository;
+import org.apache.maven.plugin.AbstractMojo;
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.descriptor.PluginDescriptor;
+import org.apache.maven.plugins.annotations.Component;
+import org.apache.maven.plugins.annotations.Execute;
+import org.apache.maven.plugins.annotations.LifecyclePhase;
+import org.apache.maven.plugins.annotations.Mojo;
+import org.apache.maven.plugins.annotations.Parameter;
+import org.apache.maven.project.MavenProject;
+import org.apache.maven.settings.Settings;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+
+@Mojo( name = "scala",
+ defaultPhase = LifecyclePhase.GENERATE_SOURCES
+)
+@Execute( goal = "scala",
+ phase = LifecyclePhase.GENERATE_SOURCES
+)
+public class StreamsPojoScalaMojo extends AbstractMojo {
+
+ private final static Logger LOGGER = LoggerFactory.getLogger(StreamsPojoScalaMojo.class);
+
+ @Component
+ private MavenProject project;
+
+// @Component
+// private Settings settings;
+//
+// @Parameter( defaultValue = "${localRepository}", readonly = true, required = true )
+// protected ArtifactRepository localRepository;
+//
+// @Parameter( defaultValue = "${plugin}", readonly = true ) // Maven 3 only
+// private PluginDescriptor plugin;
+//
+ @Parameter( defaultValue = "${project.basedir}", readonly = true )
+ private File basedir;
+
+ @Parameter(defaultValue = "${project.build.directory}", readonly = true)
+ private File target;
+
+ @Parameter(defaultValue = "org.apache.streams.pojo.json", readonly = true)
+ private String packages;
+
+ public void execute() throws MojoExecutionException {
+ StreamsPojoScala streamsPojoScala = new StreamsPojoScala(this);
+ Thread thread = new Thread(streamsPojoScala);
+ thread.start();
+ try {
+ thread.join();
+ } catch (InterruptedException e) {
+ LOGGER.error("InterruptedException", e);
+ } catch (Exception e) {
+ LOGGER.error("Exception", e);
+ }
+ return;
+ }
+
+ public File getTarget() {
+ return target;
+ }
+
+ public String getPackages() {
+ return packages;
+ }
+}
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http://git-wip-us.apache.org/repos/asf/incubator-streams/blob/61f2736a/streams-plugins/streams-plugin-scala/src/test/java/org/apache/streams/plugins/test/StreamsPojoScalaTest.java
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diff --git a/streams-plugins/streams-plugin-scala/src/test/java/org/apache/streams/plugins/test/StreamsPojoScalaTest.java b/streams-plugins/streams-plugin-scala/src/test/java/org/apache/streams/plugins/test/StreamsPojoScalaTest.java
new file mode 100644
index 0000000..4e5e7e3
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+++ b/streams-plugins/streams-plugin-scala/src/test/java/org/apache/streams/plugins/test/StreamsPojoScalaTest.java
@@ -0,0 +1,55 @@
+package org.apache.streams.plugins.test;
+
+import org.apache.streams.plugins.StreamsPojoScala;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.io.FileFilter;
+
+/**
+ * Test that Activity beans are compatible with the example activities in the spec.
+ */
+public class StreamsPojoScalaTest {
+
+ private final static Logger LOGGER = LoggerFactory.getLogger(StreamsPojoScalaTest.class);
+
+ /**
+ * Tests that all example activities can be loaded into Activity beans
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testDetectPojoScala() throws Exception {
+ StreamsPojoScala streamsPojoScala = new StreamsPojoScala();
+ streamsPojoScala.main(new String[0]);
+
+ File testOutput = new File( "./target/generated-sources/scala/org/apache/streams/scala");
+ FileFilter scalaFilter = new FileFilter() {
+ @Override
+ public boolean accept(File pathname) {
+ if( pathname.getName().endsWith(".scala") )
+ return true;
+ return false;
+ }
+ };
+
+ assert( testOutput != null );
+ assert( testOutput.exists() == true );
+ assert( testOutput.isDirectory() == true );
+ assert( testOutput.listFiles(scalaFilter).length == 11 );
+ assert( new File(testOutput + "/traits").exists() == true );
+ assert( new File(testOutput + "/traits").isDirectory() == true );
+ assert( new File(testOutput + "/traits").listFiles(scalaFilter) != null );
+ assert( new File(testOutput + "/traits").listFiles(scalaFilter).length == 4 );
+ assert( new File(testOutput + "/objectTypes").exists() == true );
+ assert( new File(testOutput + "/objectTypes").isDirectory() == true );
+ assert( new File(testOutput + "/objectTypes").listFiles(scalaFilter) != null );
+ assert( new File(testOutput + "/objectTypes").listFiles(scalaFilter).length == 43 );
+ assert( new File(testOutput + "/verbs").exists() == true );
+ assert( new File(testOutput + "/verbs").isDirectory() == true );
+ assert( new File(testOutput + "/verbs").listFiles(scalaFilter) != null );
+ assert( new File(testOutput + "/verbs").listFiles(scalaFilter).length == 89 );
+ }
+}
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http://git-wip-us.apache.org/repos/asf/incubator-streams/blob/61f2736a/streams-plugins/streams-plugin-scala/src/test/resources/streams-plugin-scala/pom.xml
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diff --git a/streams-plugins/streams-plugin-scala/src/test/resources/streams-plugin-scala/pom.xml b/streams-plugins/streams-plugin-scala/src/test/resources/streams-plugin-scala/pom.xml
new file mode 100644
index 0000000..b4867a0
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+++ b/streams-plugins/streams-plugin-scala/src/test/resources/streams-plugin-scala/pom.xml
@@ -0,0 +1,40 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+ xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+
+ <groupId>org.apache.streams.plugins</groupId>
+ <artifactId>streams-plugin-scala-test</artifactId>
+ <version>0.3-incubating-SNAPSHOT</version>
+ <packaging>jar</packaging>
+ <name>Test StreamsPojoScalaMojo</name>
+
+ <dependencies>
+ <dependency>
+ <groupId>junit</groupId>
+ <artifactId>junit</artifactId>
+ <scope>test</scope>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.streams.plugins</groupId>
+ <artifactId>streams-plugin-scala</artifactId>
+ <version>0.3-incubating-SNAPSHOT</version>
+ <configuration>
+ <packages>org.apache.streams.pojo.json</packages>
+ <target>target/test-classes/streams-scala-plugin/</target>
+ </configuration>
+ <executions>
+ <execution>
+ <goals>
+ <goal>scala</goal>
+ </goals>
+ </execution>
+ </executions>
+ </plugin>
+ </plugins>
+ </build>
+</project>
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